Java is an pure object oriented programming language, it uses the concepts of Classes, Objects, Inheritance, Polymorphism. And the execution of a program is non-linear.
It is so called because you can’t write a program with out using classes & objects.
Java’s motto (so to speak)...

These are the some of the important interview questions regarding operating systems
Explain the concept of semaphore?
A semaphore is a protected variable or abstract data type that provides a simple but useful abstraction for controlling access by multiple processes to a common resource in a parallel...

Vtiger is a great Open Source app for companies of all size.
you can install it’s open source version locally and customize based on your needs.
It can be installed in under 5 minutes and you can start using right away.
Vtiger 6 has got new dashboard color...

In this tutorial, I will show you how to setup a Tor exit relay on a Linux VPS. This allows you to share your bandwidth with other users trying to access the uncensored Internet. Just a note that this tutorial was created with CentOS as...